When you have a rich text box in a web application, the process for recording a test and playing it back will be different to a standard HTML plain text box. This is because the browser actually uses a separate IFRAME and HTML document for the editable rich text box. This article explains the process for recording/playing back such a test.
You may come across a situation where the base URL of your Spira instance has changed and the embedded image URLs no longer match. This will cause a broken image to display inside the various rich text editors in Spira. This article explains how you can use SQL to do a bulk update of the offending URLs.